Island



Patenfed Mar. 281 |899. J. H. CHRISTIE. PERMUTATIUN LOCK.

(Application mea Apr. rs, ms.)

(No Model.)

WZ'Z'NEEEE IINrre :STATES Price.

PATENT JOHN Il, CHRISTIE, OF EAS'I PROVIDENCE, RHODE ISLAND, ASSIGNOR OFA ONE-HALF 'TO JOHN H. CHURCH, OF SAME PLACE.

PERMuTATloN-LOCK.

SPECIFICATION forming part of Letters Patent No. 621,992, dated March28, 1'899.

Application filed April 13, 1898. Serial No. 677,438. (No model.)

To all whom, it may concern:

Be it known that I, JOHN H. CHRISTIE, of-

ing is a full, clear, and exact description ofthe same, reference beinghad to the accompanying drawings, forming part of this speciication. y j

Thisinventionhas reference to an improvenient in padlocks in which thehasp is locked and unlocked by the partial rotation of one or morelocking-disks.

The object of the invention is to facilitate the adjustment of thecombinations controlling the opening of the lock and simplify itsconstruction.

Figure 1 is a side View of the padlock. Fig. 2 is an edge View ofthesame. Fig. 3 is a side view of the open lock. Fig. 4 is a side View ofthe detachable side of the lock. Fig. 5 is a transverse sectional viewof the lock. Fig. G is an end View of part of the detachable cover,showing one of the lockingflanges. Fig. 7 is a top view, partly insection, of the locking-bolt connected with the locking-arm of the hasp.

Similar numerals of reference indicate corresponding parts in all thefigures.

In the drawings, 8 indicates the circular disk forming one side of thelock, 9 the circular rim forming the edge of the lock, and 10 athumb-post extending through the side 8.

The disk 11, provided with the unlocking-recess 12, is secured to andturns with the thumb-post 10. The serrated disk 13 is centrally securedto the thumb-post 10 by the screw 14. It is provided with the segmentalslots 15 15 and is secured to the disk 11 by two screws extendingthrough the segmental slots. The serrated disk can be turned on thescrew 14 and adjusted to the desired position When it is secured to thedisk 11 by the screws extending through the segmental slots 15; 16, theunserrated portion of the periphery of the disk 13. The rim 9 isperforated to receive the stem 17 of the hasp 18 and also perforated toreceive the dowel end 19 on the opposite side of the hasp 18. The spring20, secured to the inside of the rim 9, is bent sharply at a right angleat its upper end. It bears on the unserrated portion 1G of the peripheryof the disk 13, and when the disk 13 is turned the spring enters theserrations with a click that can be readily heard.

The lower end of the stem 17 of the hasp 18 is provided with the hook2l, which engages With the hooked post 22, secured to the inside of therim 9. The T-shaped lockingbolt 23 is connected with the stem 17 of thehasp by the link 23'. The T-shaped end of the locking-bolt 23 issupported by the pins 24 24, projecting inward from the rim 9. The pins25 25, projecting inward from the rim 9, serve to secure the cover 26 tothe rim 9.

The 'parts connected with the cover 26 are duplicates of the partsconnected with the side 8 and consist of the thumb-post 10", thelocking-disk 11', secured to the thumb-post and provided withl theunlocking-recess 12', the serrated disk 13', with the segmental slots15', and the unserrated portion 16 of the periphery of the disk 13'. Thespring 20 coperates with the serrated disk 13'.

From'the inside of the cover 26 project the lflanges 27, having on oneend the hook 27', -each one of which may by the partial turning of thecover engage with one of the pins 25. One of these flanges 27 isprovided with a locking-recess into which the projecting end 19 of thehasp 18 enters, and as long as the hasp is locked the cover cannot beremoved.

The operation of the lock is as follows: As long as the T-shaped end ofthe locking-bolt 23 rides on the periphery of oneot the two disks 11 and11' the bolt holds the stem 17 of the hasp 18 in the hooked and locked-position, (shown in Fig. 3,) and only when both of these disks areturned so that the T-shaped end of the locking-bolt 23 can enter theunlocking-recesses 12 and 12' sim ultaneously can the stem 17 be movedso as to disengage the hook 2l from the hook 22. When this is done, thehasp can be raised to remove the lock from the object to which it issecured, and, if desired, the cover 26 may be removed by partiallyturning the same. By adjustingthe serrated disks 13 and 13' any desiredcombination may be arrangedwhich will have to be known to open the lock.As shown in the drawings, the serrated disk 13 is adjusted so that theserration 8 is opposite the indexmark on the disk 11, while theserration 5 of ICO the serrated disk 13' is opposite the indexmark onthe disk 1l. To open the lock so adjusted, the thumb-post 10 has to beturned in the direction indicated by arrows in Figs.

. 3 and l until the spring 20 has clicked eight times and the thumb-postl0 until the spring` 20 has clicked ive times, when theunlockinr-recesses 12 and l2' will be in wosition to D allow the bolt 23to enter the same simultaneously and permit the nnhooliing and partialraising of the hasp.

Having' thus described my invention, I claim as new and desire to secureby Letters Patent- In a lock of the nature herein described, thecombination with the two sides and the rim of the casing, a hasphaving;` a long stem provided wit-h a hook at. one end and a short JOHNIl. CHRISTIE.

lVit nesses: I

D. M. Sums, J. A. MILLER, Jr.

